In this May 23, 2012, photo, President Barack Obama speaks to supporters during a campaign fundraiser in Denver. Government spending and debt are emerging as a campaign tug-of-war. Republican Mitt Romney blames President Barack Obama for a "prairie fire of debt." Obama calls the charge a "cowpie of distortion." Both candidates are reaching for unaligned, independent voters anxious about who's going to get stuck with the bill.(AP Photo/Ed Andrieski)